# modified from https://github.com/yangdongchao/SoundStorm/blob/master/soundstorm/s1/AR/models/t2s_model.py
# reference: https://github.com/lifeiteng/vall-e
import argparse
from io import BytesIO
from typing import Optional
from my_utils import load_audio
import torch
import torchaudio

from torch import IntTensor, LongTensor, Tensor, nn
from torch.nn import functional as F

from transformers import AutoModelForMaskedLM, AutoTokenizer
from feature_extractor import cnhubert

from AR.models.t2s_lightning_module import Text2SemanticLightningModule
from module.models_onnx import SynthesizerTrn

from inference_webui import get_phones_and_bert

from sv import SV
import kaldi as Kaldi

import os
import soundfile

default_config = {
    "embedding_dim": 512,
    "hidden_dim": 512,
    "num_head": 8,
    "num_layers": 12,
    "num_codebook": 8,
    "p_dropout": 0.0,
    "vocab_size": 1024 + 1,
    "phoneme_vocab_size": 512,
    "EOS": 1024,
}

sv_cn_model = None


def init_sv_cn(device, is_half):
    global sv_cn_model
    sv_cn_model = SV(device, is_half)


def load_sovits_new(sovits_path):
    f = open(sovits_path, "rb")
    meta = f.read(2)
    if meta != b"PK":
        data = b"PK" + f.read()
        bio = BytesIO()
        bio.write(data)
        bio.seek(0)
        return torch.load(bio, map_location="cpu", weights_only=False)
    return torch.load(sovits_path, map_location="cpu", weights_only=False)


def get_raw_t2s_model(dict_s1) -> Text2SemanticLightningModule:
    config = dict_s1["config"]
    config["model"]["dropout"] = float(config["model"]["dropout"])
    t2s_model = Text2SemanticLightningModule(config, "****", is_train=False)
    t2s_model.load_state_dict(dict_s1["weight"])
    t2s_model = t2s_model.eval()
    return t2s_model


@torch.jit.script
def logits_to_probs(
    logits,
    previous_tokens: Optional[torch.Tensor] = None,
    temperature: float = 1.0,
    top_k: Optional[int] = None,
    top_p: Optional[int] = None,
    repetition_penalty: float = 1.0,
):
    # if previous_tokens is not None:
    #     previous_tokens = previous_tokens.squeeze()
    # print(logits.shape,previous_tokens.shape)
    # pdb.set_trace()
    if previous_tokens is not None and repetition_penalty != 1.0:
        previous_tokens = previous_tokens.long()
        score = torch.gather(logits, dim=1, index=previous_tokens)
        score = torch.where(score < 0, score * repetition_penalty, score / repetition_penalty)
        logits.scatter_(dim=1, index=previous_tokens, src=score)

    if top_p is not None and top_p < 1.0:
        sorted_logits, sorted_indices = torch.sort(logits, descending=True)
        cum_probs = torch.cumsum(torch.nn.functional.softmax(sorted_logits, dim=-1), dim=-1)
        sorted_indices_to_remove = cum_probs > top_p
        sorted_indices_to_remove[:, 0] = False  # keep at least one option
        indices_to_remove = sorted_indices_to_remove.scatter(dim=1, index=sorted_indices, src=sorted_indices_to_remove)
        logits = logits.masked_fill(indices_to_remove, -float("Inf"))

    logits = logits / max(temperature, 1e-5)

    if top_k is not None:
        v, _ = torch.topk(logits, min(top_k, logits.size(-1)))
        pivot = v[:, -1].unsqueeze(-1)
        logits = torch.where(logits < pivot, -float("Inf"), logits)

    probs = torch.nn.functional.softmax(logits, dim=-1)
    return probs


@torch.jit.script
def multinomial_sample_one_no_sync(probs_sort):
    # Does multinomial sampling without a cuda synchronization
    q = torch.empty_like(probs_sort).exponential_(1.0)
    return torch.argmax(probs_sort / q, dim=-1, keepdim=True).to(dtype=torch.int)


@torch.jit.script
def sample(
    logits,
    previous_tokens,
    temperature: float = 1.0,
    top_k: Optional[int] = None,
    top_p: Optional[int] = None,
    repetition_penalty: float = 1.35,
):
    probs = logits_to_probs(
        logits=logits,
        previous_tokens=previous_tokens,
        temperature=temperature,
        top_k=top_k,
        top_p=top_p,
        repetition_penalty=repetition_penalty,
    )
    idx_next = multinomial_sample_one_no_sync(probs)
    return idx_next, probs


@torch.jit.script
def spectrogram_torch(
    hann_window: Tensor, y: Tensor, n_fft: int, sampling_rate: int, hop_size: int, win_size: int, center: bool = False
):
    # hann_window = torch.hann_window(win_size, device=y.device, dtype=y.dtype)
    y = torch.nn.functional.pad(
        y.unsqueeze(1),
        (int((n_fft - hop_size) / 2), int((n_fft - hop_size) / 2)),
        mode="reflect",
    )
    y = y.squeeze(1)
    spec = torch.stft(
        y,
        n_fft,
        hop_length=hop_size,
        win_length=win_size,
        window=hann_window,
        center=center,
        pad_mode="reflect",
        normalized=False,
        onesided=True,
        return_complex=False,
    )
    spec = torch.sqrt(spec.pow(2).sum(-1) + 1e-6)
    return spec


class DictToAttrRecursive(dict):
    def __init__(self, input_dict):
        super().__init__(input_dict)
        for key, value in input_dict.items():
            if isinstance(value, dict):
                value = DictToAttrRecursive(value)
            self[key] = value
            setattr(self, key, value)

    def __getattr__(self, item):
        try:
            return self[item]
        except KeyError:
            raise AttributeError(f"Attribute {item} not found")

    def __setattr__(self, key, value):
        if isinstance(value, dict):
            value = DictToAttrRecursive(value)
        super(DictToAttrRecursive, self).__setitem__(key, value)
        super().__setattr__(key, value)

    def __delattr__(self, item):
        try:
            del self[item]
        except KeyError:
            raise AttributeError(f"Attribute {item} not found")


@torch.jit.script
class T2SMLP:
    def __init__(self, w1, b1, w2, b2):
        self.w1 = w1
        self.b1 = b1
        self.w2 = w2
        self.b2 = b2

    def forward(self, x):
        x = F.relu(F.linear(x, self.w1, self.b1))
        x = F.linear(x, self.w2, self.b2)
        return x


@torch.jit.script
class T2SBlock:
    def __init__(
        self,
        num_heads: int,
        hidden_dim: int,
        mlp: T2SMLP,
        qkv_w,
        qkv_b,
        out_w,
        out_b,
        norm_w1,
        norm_b1,
        norm_eps1: float,
        norm_w2,
        norm_b2,
        norm_eps2: float,
    ):
        self.num_heads = num_heads
        self.mlp = mlp
        self.hidden_dim: int = hidden_dim
        self.qkv_w = qkv_w
        self.qkv_b = qkv_b
        self.out_w = out_w
        self.out_b = out_b
        self.norm_w1 = norm_w1
        self.norm_b1 = norm_b1
        self.norm_eps1 = norm_eps1
        self.norm_w2 = norm_w2
        self.norm_b2 = norm_b2
        self.norm_eps2 = norm_eps2

        self.false = torch.tensor(False, dtype=torch.bool)

    @torch.jit.ignore
    def to_mask(self, x: torch.Tensor, padding_mask: Optional[torch.Tensor]):
        if padding_mask is None:
            return x

        if padding_mask.dtype == torch.bool:
            return x.masked_fill(padding_mask, 0)
        else:
            return x * padding_mask

    def process_prompt(self, x: torch.Tensor, attn_mask: torch.Tensor, padding_mask: Optional[torch.Tensor] = None):
        q, k, v = F.linear(self.to_mask(x, padding_mask), self.qkv_w, self.qkv_b).chunk(3, dim=-1)

        batch_size = q.shape[0]
        q_len = q.shape[1]
        kv_len = k.shape[1]

        q = self.to_mask(q, padding_mask)
        k_cache = self.to_mask(k, padding_mask)
        v_cache = self.to_mask(v, padding_mask)

        q = q.view(batch_size, q_len, self.num_heads, -1).transpose(1, 2)
        k = k_cache.view(batch_size, kv_len, self.num_heads, -1).transpose(1, 2)
        v = v_cache.view(batch_size, kv_len, self.num_heads, -1).transpose(1, 2)

        attn = F.scaled_dot_product_attention(q, k, v, ~attn_mask)

        attn = attn.permute(2, 0, 1, 3).reshape(batch_size * q_len, self.hidden_dim)
        attn = attn.view(q_len, batch_size, self.hidden_dim).transpose(1, 0)
        attn = F.linear(self.to_mask(attn, padding_mask), self.out_w, self.out_b)

        if padding_mask is not None:
            for i in range(batch_size):
                # mask = padding_mask[i,:,0]
                if self.false.device != padding_mask.device:
                    self.false = self.false.to(padding_mask.device)
                idx = torch.where(padding_mask[i, :, 0] == self.false)[0]
                x_item = x[i, idx, :].unsqueeze(0)
                attn_item = attn[i, idx, :].unsqueeze(0)
                x_item = x_item + attn_item
                x_item = F.layer_norm(x_item, [self.hidden_dim], self.norm_w1, self.norm_b1, self.norm_eps1)
                x_item = x_item + self.mlp.forward(x_item)
                x_item = F.layer_norm(
                    x_item,
                    [self.hidden_dim],
                    self.norm_w2,
                    self.norm_b2,
                    self.norm_eps2,
                )
                x[i, idx, :] = x_item.squeeze(0)
            x = self.to_mask(x, padding_mask)
        else:
            x = x + attn
            x = F.layer_norm(x, [self.hidden_dim], self.norm_w1, self.norm_b1, self.norm_eps1)
            x = x + self.mlp.forward(x)
            x = F.layer_norm(
                x,
                [self.hidden_dim],
                self.norm_w2,
                self.norm_b2,
                self.norm_eps2,
            )
        return x, k_cache, v_cache

    def decode_next_token(self, x: torch.Tensor, k_cache: torch.Tensor, v_cache: torch.Tensor):
        q, k, v = F.linear(x, self.qkv_w, self.qkv_b).chunk(3, dim=-1)

        k_cache = torch.cat([k_cache, k], dim=1)
        v_cache = torch.cat([v_cache, v], dim=1)

        batch_size = q.shape[0]
        q_len = q.shape[1]
        kv_len = k_cache.shape[1]

        q = q.view(batch_size, q_len, self.num_heads, -1).transpose(1, 2)
        k = k_cache.view(batch_size, kv_len, self.num_heads, -1).transpose(1, 2)
        v = v_cache.view(batch_size, kv_len, self.num_heads, -1).transpose(1, 2)

        attn = F.scaled_dot_product_attention(q, k, v)

        # attn = attn.permute(2, 0, 1, 3).reshape(batch_size * q_len, self.hidden_dim)
        # attn = attn.view(q_len, batch_size, self.hidden_dim).transpose(1, 0)
        attn = attn.transpose(1, 2).reshape(batch_size, q_len, -1)
        attn = F.linear(attn, self.out_w, self.out_b)

        x = x + attn
        x = F.layer_norm(x, [self.hidden_dim], self.norm_w1, self.norm_b1, self.norm_eps1)
        x = x + self.mlp.forward(x)
        x = F.layer_norm(
            x,
            [self.hidden_dim],
            self.norm_w2,
            self.norm_b2,
            self.norm_eps2,
        )
        return x, k_cache, v_cache


@torch.jit.script
class T2STransformer:
    def __init__(self, num_blocks: int, blocks: list[T2SBlock]):
        self.num_blocks: int = num_blocks
        self.blocks = blocks

    def process_prompt(self, x: torch.Tensor, attn_mask: torch.Tensor, padding_mask: Optional[torch.Tensor] = None):
        k_cache: list[torch.Tensor] = []
        v_cache: list[torch.Tensor] = []
        for i in range(self.num_blocks):
            x, k_cache_, v_cache_ = self.blocks[i].process_prompt(x, attn_mask, padding_mask)
            k_cache.append(k_cache_)
            v_cache.append(v_cache_)
        return x, k_cache, v_cache

    def decode_next_token(self, x: torch.Tensor, k_cache: list[torch.Tensor], v_cache: list[torch.Tensor]):
        for i in range(self.num_blocks):
            x, k_cache[i], v_cache[i] = self.blocks[i].decode_next_token(x, k_cache[i], v_cache[i])
        return x, k_cache, v_cache


class VitsModel(nn.Module):
    def __init__(self, vits_path, version=None, is_half=True, device="cpu"):
        super().__init__()
        # dict_s2 = torch.load(vits_path,map_location="cpu")
        dict_s2 = load_sovits_new(vits_path)
        self.hps = dict_s2["config"]

        if version is None:
            if dict_s2["weight"]["enc_p.text_embedding.weight"].shape[0] == 322:
                self.hps["model"]["version"] = "v1"
            else:
                self.hps["model"]["version"] = "v2"
        else:
            if version in ["v1", "v2", "v3", "v4", "v2Pro", "v2ProPlus"]:
                self.hps["model"]["version"] = version
            else:
                raise ValueError(f"Unsupported version: {version}")

        self.hps = DictToAttrRecursive(self.hps)
        self.hps.model.semantic_frame_rate = "25hz"
        self.vq_model = SynthesizerTrn(
            self.hps.data.filter_length // 2 + 1,
            self.hps.train.segment_size // self.hps.data.hop_length,
            n_speakers=self.hps.data.n_speakers,
            **self.hps.model,
        )
        self.vq_model.load_state_dict(dict_s2["weight"], strict=False)
        self.vq_model.dec.remove_weight_norm()
        if is_half:
            self.vq_model = self.vq_model.half()
        self.vq_model = self.vq_model.to(device)
        self.vq_model.eval()
        self.hann_window = torch.hann_window(
            self.hps.data.win_length, device=device, dtype=torch.float16 if is_half else torch.float32
        )

    def forward(self, text_seq, pred_semantic, ref_audio, speed=1.0, sv_emb=None):
        refer = spectrogram_torch(
            self.hann_window,
            ref_audio,
            self.hps.data.filter_length,
            self.hps.data.sampling_rate,
            self.hps.data.hop_length,
            self.hps.data.win_length,
            center=False,
        )
        return self.vq_model(pred_semantic, text_seq, refer, speed=speed, sv_emb=sv_emb)[0, 0]


class T2SModel(nn.Module):
    def __init__(self, raw_t2s: Text2SemanticLightningModule):
        super(T2SModel, self).__init__()
        self.model_dim = raw_t2s.model.model_dim
        self.embedding_dim = raw_t2s.model.embedding_dim
        self.num_head = raw_t2s.model.num_head
        self.num_layers = raw_t2s.model.num_layers
        self.vocab_size = raw_t2s.model.vocab_size
        self.phoneme_vocab_size = raw_t2s.model.phoneme_vocab_size
        # self.p_dropout = float(raw_t2s.model.p_dropout)
        self.EOS: int = int(raw_t2s.model.EOS)
        self.norm_first = raw_t2s.model.norm_first
        assert self.EOS == self.vocab_size - 1
        self.hz = 50

        self.bert_proj = raw_t2s.model.bert_proj
        self.ar_text_embedding = raw_t2s.model.ar_text_embedding
        self.ar_text_position = raw_t2s.model.ar_text_position
        self.ar_audio_embedding = raw_t2s.model.ar_audio_embedding
        self.ar_audio_position = raw_t2s.model.ar_audio_position

        # self.t2s_transformer = T2STransformer(self.num_layers, blocks)
        # self.t2s_transformer = raw_t2s.model.t2s_transformer

        blocks = []
        h = raw_t2s.model.h

        for i in range(self.num_layers):
            layer = h.layers[i]
            t2smlp = T2SMLP(layer.linear1.weight, layer.linear1.bias, layer.linear2.weight, layer.linear2.bias)

            block = T2SBlock(
                self.num_head,
                self.model_dim,
                t2smlp,
                layer.self_attn.in_proj_weight,
                layer.self_attn.in_proj_bias,
                layer.self_attn.out_proj.weight,
                layer.self_attn.out_proj.bias,
                layer.norm1.weight,
                layer.norm1.bias,
                layer.norm1.eps,
                layer.norm2.weight,
                layer.norm2.bias,
                layer.norm2.eps,
            )

            blocks.append(block)

        self.t2s_transformer = T2STransformer(self.num_layers, blocks)

        # self.ar_predict_layer = nn.Linear(self.model_dim, self.vocab_size, bias=False)
        self.ar_predict_layer = raw_t2s.model.ar_predict_layer
        # self.loss_fct = nn.CrossEntropyLoss(reduction="sum")
        self.max_sec = raw_t2s.config["data"]["max_sec"]
        self.top_k = int(raw_t2s.config["inference"]["top_k"])
        self.early_stop_num = torch.LongTensor([self.hz * self.max_sec])

    def forward(
        self,
        prompts: LongTensor,
        ref_seq: LongTensor,
        text_seq: LongTensor,
        ref_bert: torch.Tensor,
        text_bert: torch.Tensor,
        top_k: LongTensor,
    ):
        bert = torch.cat([ref_bert.T, text_bert.T], 1)
        all_phoneme_ids = torch.cat([ref_seq, text_seq], 1)
        bert = bert.unsqueeze(0)

        x = self.ar_text_embedding(all_phoneme_ids)

        # avoid dtype inconsistency when exporting
        bert = bert.to(dtype=self.bert_proj.weight.dtype)
        
        x = x + self.bert_proj(bert.transpose(1, 2))
        x: torch.Tensor = self.ar_text_position(x)

        early_stop_num = self.early_stop_num

        # [1,N,512] [1,N]
        # y, k, v, y_emb, x_example = self.first_stage_decoder(x, prompts)
        y = prompts
        # x_example = x[:,:,0] * 0.0

        x_len = x.shape[1]
        x_attn_mask = torch.zeros((x_len, x_len), dtype=torch.bool)

        y_emb = self.ar_audio_embedding(y)
        y_len = y_emb.shape[1]
        prefix_len = y.shape[1]
        y_pos = self.ar_audio_position(y_emb)
        xy_pos = torch.concat([x, y_pos], dim=1)

        bsz = x.shape[0]
        src_len = x_len + y_len
        x_attn_mask_pad = F.pad(
            x_attn_mask,
            (0, y_len),  ###xx的纯0扩展到xx纯0+xy纯1，(x,x+y)
            value=True,
        )
        y_attn_mask = F.pad(  ###yy的右上1扩展到左边xy的0,(y,x+y)
            torch.triu(torch.ones(y_len, y_len, dtype=torch.bool), diagonal=1),
            (x_len, 0),
            value=False,
        )
        xy_attn_mask = (
            torch.concat([x_attn_mask_pad, y_attn_mask], dim=0)
            .unsqueeze(0)
            .expand(bsz * self.num_head, -1, -1)
            .view(bsz, self.num_head, src_len, src_len)
            .to(device=x.device, dtype=torch.bool)
        )

        idx = 0
        top_k = int(top_k)

        xy_dec, k_cache, v_cache = self.t2s_transformer.process_prompt(xy_pos, xy_attn_mask, None)

        logits = self.ar_predict_layer(xy_dec[:, -1])
        logits = logits[:, :-1]
        samples = sample(logits, y, top_k=top_k, top_p=1, repetition_penalty=1.35, temperature=1.0)[0]
        y = torch.concat([y, samples], dim=1)
        y_emb = self.ar_audio_embedding(y[:, -1:])
        xy_pos = y_emb * self.ar_audio_position.x_scale + self.ar_audio_position.alpha * self.ar_audio_position.pe[
            :, y_len + idx
        ].to(dtype=y_emb.dtype, device=y_emb.device)

        stop = False
        # for idx in range(1, 50):
        for idx in range(1, 1500):
            # [1, N] [N_layer, N, 1, 512] [N_layer, N, 1, 512] [1, N, 512] [1] [1, N, 512] [1, N]
            # y, k, v, y_emb, logits, samples = self.stage_decoder(y, k, v, y_emb, x_example)
            xy_dec, k_cache, v_cache = self.t2s_transformer.decode_next_token(xy_pos, k_cache, v_cache)
            logits = self.ar_predict_layer(xy_dec[:, -1])

            if idx < 11:  ###至少预测出10个token不然不给停止（0.4s）
                logits = logits[:, :-1]

            samples = sample(logits, y, top_k=top_k, top_p=1, repetition_penalty=1.35, temperature=1.0)[0]

            y = torch.concat([y, samples], dim=1)

            if early_stop_num != -1 and (y.shape[1] - prefix_len) > early_stop_num:
                stop = True
            if torch.argmax(logits, dim=-1)[0] == self.EOS or samples[0, 0] == self.EOS:
                stop = True
            if stop:
                if y.shape[1] == 0:
                    y = torch.concat([y, torch.zeros_like(samples)], dim=1)
                break

            y_emb = self.ar_audio_embedding(y[:, -1:])
            xy_pos = y_emb * self.ar_audio_position.x_scale + self.ar_audio_position.alpha * self.ar_audio_position.pe[
                :, y_len + idx
            ].to(dtype=y_emb.dtype, device=y_emb.device)

        y[0, -1] = 0

        return y[:, -idx:].unsqueeze(0)


bert_path = os.environ.get("bert_path", "GPT_SoVITS/pretrained_models/chinese-roberta-wwm-ext-large")
cnhubert_base_path = "GPT_SoVITS/pretrained_models/chinese-hubert-base"
cnhubert.cnhubert_base_path = cnhubert_base_path


@torch.jit.script
def build_phone_level_feature(res: Tensor, word2ph: IntTensor):
    phone_level_feature = []
    for i in range(word2ph.shape[0]):
        repeat_feature = res[i].repeat(word2ph[i].item(), 1)
        phone_level_feature.append(repeat_feature)
    phone_level_feature = torch.cat(phone_level_feature, dim=0)
    # [sum(word2ph), 1024]
    return phone_level_feature


class MyBertModel(torch.nn.Module):
    def __init__(self, bert_model):
        super(MyBertModel, self).__init__()
        self.bert = bert_model

    def forward(
        self, input_ids: torch.Tensor, attention_mask: torch.Tensor, token_type_ids: torch.Tensor, word2ph: IntTensor
    ):
        outputs = self.bert(input_ids=input_ids, attention_mask=attention_mask, token_type_ids=token_type_ids)
        # res = torch.cat(outputs["hidden_states"][-3:-2], -1)[0][1:-1]
        res = torch.cat(outputs[1][-3:-2], -1)[0][1:-1]
        return build_phone_level_feature(res, word2ph)


class SSLModel(torch.nn.Module):
    def __init__(self):
        super().__init__()
        self.ssl = cnhubert.get_model().model

    def forward(self, ref_audio_16k) -> torch.Tensor:
        ssl_content = self.ssl(ref_audio_16k)["last_hidden_state"].transpose(1, 2)
        return ssl_content


class ExportSSLModel(torch.nn.Module):
    def __init__(self, ssl: SSLModel):
        super().__init__()
        self.ssl = ssl

    def forward(self, ref_audio: torch.Tensor):
        return self.ssl(ref_audio)

    @torch.jit.export
    def resample(self, ref_audio: torch.Tensor, src_sr: int, dst_sr: int) -> torch.Tensor:
        audio = resamplex(ref_audio, src_sr, dst_sr).float()
        return audio


def export_bert(output_path):
    tokenizer = AutoTokenizer.from_pretrained(bert_path)

    text = "叹息声一声接着一声传出,木兰对着房门织布.听不见织布机织布的声音,只听见木兰在叹息.问木兰在想什么?问木兰在惦记什么?木兰答道,我也没有在想什么,也没有在惦记什么."
    ref_bert_inputs = tokenizer(text, return_tensors="pt")
    word2ph = []
    for c in text:
        if c in ["，", "。", "：", "？", ",", ".", "?"]:
            word2ph.append(1)
        else:
            word2ph.append(2)
    ref_bert_inputs["word2ph"] = torch.Tensor(word2ph).int()

    bert_model = AutoModelForMaskedLM.from_pretrained(bert_path, output_hidden_states=True, torchscript=True)
    my_bert_model = MyBertModel(bert_model)

    ref_bert_inputs = {
        "input_ids": ref_bert_inputs["input_ids"],
        "attention_mask": ref_bert_inputs["attention_mask"],
        "token_type_ids": ref_bert_inputs["token_type_ids"],
        "word2ph": ref_bert_inputs["word2ph"],
    }

    torch._dynamo.mark_dynamic(ref_bert_inputs["input_ids"], 1)
    torch._dynamo.mark_dynamic(ref_bert_inputs["attention_mask"], 1)
    torch._dynamo.mark_dynamic(ref_bert_inputs["token_type_ids"], 1)
    torch._dynamo.mark_dynamic(ref_bert_inputs["word2ph"], 0)

    my_bert_model = torch.jit.trace(my_bert_model, example_kwarg_inputs=ref_bert_inputs)
    output_path = os.path.join(output_path, "bert_model.pt")
    my_bert_model.save(output_path)
    print("#### exported bert ####")


def export(gpt_path, vits_path, ref_audio_path, ref_text, output_path, export_bert_and_ssl=False, device="cpu"):
    if not os.path.exists(output_path):
        os.makedirs(output_path)
        print(f"目录已创建: {output_path}")
    else:
        print(f"目录已存在: {output_path}")

    ref_audio = torch.tensor([load_audio(ref_audio_path, 16000)]).float()
    ssl = SSLModel()
    if export_bert_and_ssl:
        s = ExportSSLModel(torch.jit.trace(ssl, example_inputs=(ref_audio)))
        ssl_path = os.path.join(output_path, "ssl_model.pt")
        torch.jit.script(s).save(ssl_path)
        print("#### exported ssl ####")
        export_bert(output_path)
    else:
        s = ExportSSLModel(ssl)

    print(f"device: {device}")

    ref_seq_id, ref_bert_T, ref_norm_text = get_phones_and_bert(ref_text, "all_zh", "v2")
    ref_seq = torch.LongTensor([ref_seq_id]).to(device)
    ref_bert = ref_bert_T.T.to(ref_seq.device)
    text_seq_id, text_bert_T, norm_text = get_phones_and_bert(
        "这是一个简单的示例，真没想到这么简单就完成了。The King and His Stories.Once there was a king. He likes to write stories, but his stories were not good. As people were afraid of him, they all said his stories were good.After reading them, the writer at once turned to the soldiers and said: Take me back to prison, please.",
        "auto",
        "v2",
    )
    text_seq = torch.LongTensor([text_seq_id]).to(device)
    text_bert = text_bert_T.T.to(text_seq.device)

    ssl_content = ssl(ref_audio).to(device)

    # vits_path = "SoVITS_weights_v2/xw_e8_s216.pth"
    vits = VitsModel(vits_path, device=device, is_half=False)
    vits.eval()

    # gpt_path = "GPT_weights_v2/xw-e15.ckpt"
    # dict_s1 = torch.load(gpt_path, map_location=device)
    dict_s1 = torch.load(gpt_path, weights_only=False)
    raw_t2s = get_raw_t2s_model(dict_s1).to(device)
    print("#### get_raw_t2s_model ####")
    print(raw_t2s.config)
    t2s_m = T2SModel(raw_t2s)
    t2s_m.eval()
    t2s = torch.jit.script(t2s_m).to(device)
    print("#### script t2s_m ####")

    print("vits.hps.data.sampling_rate:", vits.hps.data.sampling_rate)
    gpt_sovits = GPT_SoVITS(t2s, vits).to(device)
    gpt_sovits.eval()

    ref_audio_sr = s.resample(ref_audio, 16000, 32000).to(device)

    torch._dynamo.mark_dynamic(ssl_content, 2)
    torch._dynamo.mark_dynamic(ref_audio_sr, 1)
    torch._dynamo.mark_dynamic(ref_seq, 1)
    torch._dynamo.mark_dynamic(text_seq, 1)
    torch._dynamo.mark_dynamic(ref_bert, 0)
    torch._dynamo.mark_dynamic(text_bert, 0)

    top_k = torch.LongTensor([5]).to(device)

    with torch.no_grad():
        gpt_sovits_export = torch.jit.trace(
            gpt_sovits, example_inputs=(ssl_content, ref_audio_sr, ref_seq, text_seq, ref_bert, text_bert, top_k)
        )

        gpt_sovits_path = os.path.join(output_path, "gpt_sovits_model.pt")
        gpt_sovits_export.save(gpt_sovits_path)
        print("#### exported gpt_sovits ####")


def export_prov2(
    gpt_path,
    vits_path,
    version,
    ref_audio_path,
    ref_text,
    output_path,
    export_bert_and_ssl=False,
    device="cpu",
    is_half=True,
):
    if sv_cn_model == None:
        init_sv_cn(device, is_half)

    if not os.path.exists(output_path):
        os.makedirs(output_path)
        print(f"目录已创建: {output_path}")
    else:
        print(f"目录已存在: {output_path}")

    ref_audio = torch.tensor([load_audio(ref_audio_path, 16000)]).float()
    ssl = SSLModel()
    if export_bert_and_ssl:
        s = ExportSSLModel(torch.jit.trace(ssl, example_inputs=(ref_audio)))
        ssl_path = os.path.join(output_path, "ssl_model.pt")
        torch.jit.script(s).save(ssl_path)
        print("#### exported ssl ####")
        export_bert(output_path)
    else:
        s = ExportSSLModel(ssl)

    print(f"device: {device}")

    ref_seq_id, ref_bert_T, ref_norm_text = get_phones_and_bert(ref_text, "all_zh", "v2")
    ref_seq = torch.LongTensor([ref_seq_id]).to(device)
    ref_bert = ref_bert_T.T
    if is_half:
        ref_bert = ref_bert.half()
    ref_bert = ref_bert.to(ref_seq.device)

    text_seq_id, text_bert_T, norm_text = get_phones_and_bert(
        "这是一个简单的示例，真没想到这么简单就完成了。The King and His Stories.Once there was a king. He likes to write stories, but his stories were not good. As people were afraid of him, they all said his stories were good.After reading them, the writer at once turned to the soldiers and said: Take me back to prison, please.",
        "auto",
        "v2",
    )
    text_seq = torch.LongTensor([text_seq_id]).to(device)
    text_bert = text_bert_T.T
    if is_half:
        text_bert = text_bert.half()
    text_bert = text_bert.to(text_seq.device)

    ssl_content = ssl(ref_audio)
    if is_half:
        ssl_content = ssl_content.half()
    ssl_content = ssl_content.to(device)

    sv_model = ExportERes2NetV2(sv_cn_model)

    # vits_path = "SoVITS_weights_v2/xw_e8_s216.pth"
    vits = VitsModel(vits_path, version, is_half=is_half, device=device)
    vits.eval()

    # gpt_path = "GPT_weights_v2/xw-e15.ckpt"
    # dict_s1 = torch.load(gpt_path, map_location=device)
    dict_s1 = torch.load(gpt_path, weights_only=False)
    raw_t2s = get_raw_t2s_model(dict_s1).to(device)
    print("#### get_raw_t2s_model ####")
    print(raw_t2s.config)
    if is_half:
        raw_t2s = raw_t2s.half()
    t2s_m = T2SModel(raw_t2s)
    t2s_m.eval()
    t2s = torch.jit.script(t2s_m).to(device)
    print("#### script t2s_m ####")

    print("vits.hps.data.sampling_rate:", vits.hps.data.sampling_rate)
    gpt_sovits = GPT_SoVITS_V2Pro(t2s, vits, sv_model).to(device)
    gpt_sovits.eval()

    ref_audio_sr = s.resample(ref_audio, 16000, 32000)
    if is_half:
        ref_audio_sr = ref_audio_sr.half()
    ref_audio_sr = ref_audio_sr.to(device)

    torch._dynamo.mark_dynamic(ssl_content, 2)
    torch._dynamo.mark_dynamic(ref_audio_sr, 1)
    torch._dynamo.mark_dynamic(ref_seq, 1)
    torch._dynamo.mark_dynamic(text_seq, 1)
    torch._dynamo.mark_dynamic(ref_bert, 0)
    torch._dynamo.mark_dynamic(text_bert, 0)
    # torch._dynamo.mark_dynamic(sv_emb, 0)

    top_k = torch.LongTensor([5]).to(device)
    # 先跑一遍 sv_model 让它加载 cache，详情见 L880
    gpt_sovits.sv_model(ref_audio_sr)

    with torch.no_grad():
        gpt_sovits_export = torch.jit.trace(
            gpt_sovits,
            example_inputs=(
                ssl_content,
                ref_audio_sr,
                ref_seq,
                text_seq,
                ref_bert,
                text_bert,
                top_k,
            ),
        )

        gpt_sovits_path = os.path.join(output_path, "gpt_sovits_model.pt")
        gpt_sovits_export.save(gpt_sovits_path)
        print("#### exported gpt_sovits ####")
        audio = gpt_sovits_export(ssl_content, ref_audio_sr, ref_seq, text_seq, ref_bert, text_bert, top_k)
        print("start write wav")
        soundfile.write("out.wav", audio.float().detach().cpu().numpy(), 32000)


@torch.jit.script
def parse_audio(ref_audio):
    ref_audio_16k = torchaudio.functional.resample(ref_audio, 48000, 16000).float()  # .to(ref_audio.device)
    ref_audio_sr = torchaudio.functional.resample(ref_audio, 48000, 32000).float()  # .to(ref_audio.device)
    return ref_audio_16k, ref_audio_sr


@torch.jit.script
def resamplex(ref_audio: torch.Tensor, src_sr: int, dst_sr: int) -> torch.Tensor:
    return torchaudio.functional.resample(ref_audio, src_sr, dst_sr).float()


class GPT_SoVITS(nn.Module):
    def __init__(self, t2s: T2SModel, vits: VitsModel):
        super().__init__()
        self.t2s = t2s
        self.vits = vits

    def forward(
        self,
        ssl_content: torch.Tensor,
        ref_audio_sr: torch.Tensor,
        ref_seq: Tensor,
        text_seq: Tensor,
        ref_bert: Tensor,
        text_bert: Tensor,
        top_k: LongTensor,
        speed=1.0,
    ):
        codes = self.vits.vq_model.extract_latent(ssl_content)
        prompt_semantic = codes[0, 0]
        prompts = prompt_semantic.unsqueeze(0)

        pred_semantic = self.t2s(prompts, ref_seq, text_seq, ref_bert, text_bert, top_k)
        audio = self.vits(text_seq, pred_semantic, ref_audio_sr, speed)
        return audio


class ExportERes2NetV2(nn.Module):
    def __init__(self, sv_cn_model: SV):
        super(ExportERes2NetV2, self).__init__()
        self.bn1 = sv_cn_model.embedding_model.bn1
        self.conv1 = sv_cn_model.embedding_model.conv1
        self.layer1 = sv_cn_model.embedding_model.layer1
        self.layer2 = sv_cn_model.embedding_model.layer2
        self.layer3 = sv_cn_model.embedding_model.layer3
        self.layer4 = sv_cn_model.embedding_model.layer4
        self.layer3_ds = sv_cn_model.embedding_model.layer3_ds
        self.fuse34 = sv_cn_model.embedding_model.fuse34

    # audio_16k.shape: [1,N]
    def forward(self, audio_16k):
        # 这个 fbank 函数有一个 cache, 不过不要紧，它跟 audio_16k 的长度无关
        # 只跟 device 和 dtype 有关
        x = Kaldi.fbank(audio_16k, num_mel_bins=80, sample_frequency=16000, dither=0)
        x = torch.stack([x])

        x = x.permute(0, 2, 1)  # (B,T,F) => (B,F,T)
        x = x.unsqueeze_(1)
        out = F.relu(self.bn1(self.conv1(x)))
        out1 = self.layer1(out)
        out2 = self.layer2(out1)
        out3 = self.layer3(out2)
        out4 = self.layer4(out3)
        out3_ds = self.layer3_ds(out3)
        fuse_out34 = self.fuse34(out4, out3_ds)
        return fuse_out34.flatten(start_dim=1, end_dim=2).mean(-1)


class GPT_SoVITS_V2Pro(nn.Module):
    def __init__(self, t2s: T2SModel, vits: VitsModel, sv_model: ExportERes2NetV2):
        super().__init__()
        self.t2s = t2s
        self.vits = vits
        self.sv_model = sv_model

    def forward(
        self,
        ssl_content: torch.Tensor,
        ref_audio_sr: torch.Tensor,
        ref_seq: Tensor,
        text_seq: Tensor,
        ref_bert: Tensor,
        text_bert: Tensor,
        top_k: LongTensor,
        speed=1.0,
    ):
        codes = self.vits.vq_model.extract_latent(ssl_content)
        prompt_semantic = codes[0, 0]
        prompts = prompt_semantic.unsqueeze(0)

        audio_16k = resamplex(ref_audio_sr, 32000, 16000).to(ref_audio_sr.dtype)
        sv_emb = self.sv_model(audio_16k)

        pred_semantic = self.t2s(prompts, ref_seq, text_seq, ref_bert, text_bert, top_k)
        audio = self.vits(text_seq, pred_semantic, ref_audio_sr, speed, sv_emb)
        return audio


def test():
    parser = argparse.ArgumentParser(description="GPT-SoVITS Command Line Tool")
    parser.add_argument("--gpt_model", required=True, help="Path to the GPT model file")
    parser.add_argument("--sovits_model", required=True, help="Path to the SoVITS model file")
    parser.add_argument("--ref_audio", required=True, help="Path to the reference audio file")
    parser.add_argument("--ref_text", required=True, help="Path to the reference text file")
    parser.add_argument("--output_path", required=True, help="Path to the output directory")

    args = parser.parse_args()
    gpt_path = args.gpt_model
    vits_path = args.sovits_model
    ref_audio_path = args.ref_audio
    ref_text = args.ref_text

    tokenizer = AutoTokenizer.from_pretrained(bert_path)
    # bert_model = AutoModelForMaskedLM.from_pretrained(bert_path,output_hidden_states=True,torchscript=True)
    # bert = MyBertModel(bert_model)
    my_bert = torch.jit.load("onnx/bert_model.pt", map_location="cuda")

    # dict_s1 = torch.load(gpt_path, map_location="cuda")
    # raw_t2s = get_raw_t2s_model(dict_s1)
    # t2s = T2SModel(raw_t2s)
    # t2s.eval()
    # t2s = torch.jit.load("onnx/xw/t2s_model.pt",map_location='cuda')

    # vits_path = "SoVITS_weights_v2/xw_e8_s216.pth"
    # vits = VitsModel(vits_path)
    # vits.eval()

    # ssl = ExportSSLModel(SSLModel()).to('cuda')
    # ssl.eval()
    ssl = torch.jit.load("onnx/by/ssl_model.pt", map_location="cuda")

    # gpt_sovits = GPT_SoVITS(t2s,vits)
    gpt_sovits = torch.jit.load("onnx/by/gpt_sovits_model.pt", map_location="cuda")

    ref_seq_id, ref_bert_T, ref_norm_text = get_phones_and_bert(ref_text, "all_zh", "v2")
    ref_seq = torch.LongTensor([ref_seq_id])
    ref_bert = ref_bert_T.T.to(ref_seq.device)
    # text_seq_id,text_bert_T,norm_text = get_phones_and_bert("昨天晚上看见征兵文书,知道君主在大规模征兵,那么多卷征兵文册,每一卷上都有父亲的名字.","all_zh",'v2')
    text = "昨天晚上看见征兵文书,知道君主在大规模征兵,那么多卷征兵文册,每一卷上都有父亲的名字."

    text_seq_id, text_bert_T, norm_text = get_phones_and_bert(text, "all_zh", "v2")

    test_bert = tokenizer(text, return_tensors="pt")
    word2ph = []
    for c in text:
        if c in ["，", "。", "：", "？", "?", ",", "."]:
            word2ph.append(1)
        else:
            word2ph.append(2)
    test_bert["word2ph"] = torch.Tensor(word2ph).int()

    test_bert = my_bert(
        test_bert["input_ids"].to("cuda"),
        test_bert["attention_mask"].to("cuda"),
        test_bert["token_type_ids"].to("cuda"),
        test_bert["word2ph"].to("cuda"),
    )

    text_seq = torch.LongTensor([text_seq_id])
    text_bert = text_bert_T.T.to(text_seq.device)

    print("text_bert:", text_bert.shape, text_bert)
    print("test_bert:", test_bert.shape, test_bert)
    print(torch.allclose(text_bert.to("cuda"), test_bert))

    print("text_seq:", text_seq.shape)
    print("text_bert:", text_bert.shape, text_bert.type())

    # [1,N]
    ref_audio = torch.tensor([load_audio(ref_audio_path, 16000)]).float().to("cuda")
    print("ref_audio:", ref_audio.shape)

    ref_audio_sr = ssl.resample(ref_audio, 16000, 32000)
    print("start ssl")
    ssl_content = ssl(ref_audio)

    print("start gpt_sovits:")
    print("ssl_content:", ssl_content.shape)
    print("ref_audio_sr:", ref_audio_sr.shape)
    print("ref_seq:", ref_seq.shape)
    ref_seq = ref_seq.to("cuda")
    print("text_seq:", text_seq.shape)
    text_seq = text_seq.to("cuda")
    print("ref_bert:", ref_bert.shape)
    ref_bert = ref_bert.to("cuda")
    print("text_bert:", text_bert.shape)
    text_bert = text_bert.to("cuda")

    top_k = torch.LongTensor([5]).to("cuda")

    with torch.no_grad():
        audio = gpt_sovits(ssl_content, ref_audio_sr, ref_seq, text_seq, ref_bert, test_bert, top_k)
    print("start write wav")
    soundfile.write("out.wav", audio.detach().cpu().numpy(), 32000)


import text
import json


def export_symbel(version="v2"):
    if version == "v1":
        symbols = text._symbol_to_id_v1
        with open("onnx/symbols_v1.json", "w") as file:
            json.dump(symbols, file, indent=4)
    else:
        symbols = text._symbol_to_id_v2
        with open("onnx/symbols_v2.json", "w") as file:
            json.dump(symbols, file, indent=4)


def main():
    parser = argparse.ArgumentParser(description="GPT-SoVITS Command Line Tool")
    parser.add_argument("--gpt_model", required=True, help="Path to the GPT model file")
    parser.add_argument("--sovits_model", required=True, help="Path to the SoVITS model file")
    parser.add_argument("--ref_audio", required=True, help="Path to the reference audio file")
    parser.add_argument("--ref_text", required=True, help="Path to the reference text file")
    parser.add_argument("--output_path", required=True, help="Path to the output directory")
    parser.add_argument("--export_common_model", action="store_true", help="Export Bert and SSL model")
    parser.add_argument("--device", help="Device to use")
    parser.add_argument("--version", help="version of the model", default="v2")
    parser.add_argument("--no-half", action="store_true", help="Do not use half precision for model weights")

    args = parser.parse_args()
    if args.version in ["v2Pro", "v2ProPlus"]:
        is_half = not args.no_half
        print(f"Using half precision: {is_half}")
        export_prov2(
            gpt_path=args.gpt_model,
            vits_path=args.sovits_model,
            version=args.version,
            ref_audio_path=args.ref_audio,
            ref_text=args.ref_text,
            output_path=args.output_path,
            export_bert_and_ssl=args.export_common_model,
            device=args.device,
            is_half=is_half,
        )
    else:
        export(
            gpt_path=args.gpt_model,
            vits_path=args.sovits_model,
            ref_audio_path=args.ref_audio,
            ref_text=args.ref_text,
            output_path=args.output_path,
            device=args.device,
            export_bert_and_ssl=args.export_common_model,
        )


if __name__ == "__main__":
    with torch.no_grad():
        main()
    # test()
